Finding the Fourth Proportional to 102,528.16, 141,514.64 and 57,842.08
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Solution
The fourth proportional to 102,528.16, 141,514.64 and 57,842.08 is: 79,836.61
Step by Step Solution
- Step 1: Write the proportion equation
102,528.16 : 141,514.64 = 57,842.08 : x - Step 2: Convert to fraction form
102,528.16/141,514.64 = 57,842.08/x - Step 3: Cross multiply
102,528.16x = 141,514.64 × 57,842.08 - Step 4: Simplify right side
102,528.16x = 8,185,501,128.05 - Step 5: Solve for x
x = 8,185,501,128.05/102,528.16 - Step 6: Final answer
x = 79,836.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.